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First reload case failure

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/16/2008 at 19:42
Steelbenz View Drop Down
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Edited by Steelbenz - October/16/2008 at 19:42
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/16/2008 at 19:42
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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/16/2008 at 21:34
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No ejector extrusion marks gives the impression the round was not over pressure.
 
When around is fired, the primer partially ejects and its rearward travel is restircted by the bolt face.
The cartridge then travels rearward and re-seats the primer giving the impression that the primer hasn't moved.
 
In this case ( no pun ) it looks like the primer went rearward but that particular case grabbed the chamber near the neck-shoulder-forward case body and did not travel rearward rapidly enough to recapture the primer, but allowed the case to stretch rearward and bind the bolt enough to allow you to feel resistance.
I could be wrong.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/16/2008 at 21:41
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Thats my guess as well.  I bought a bunch of supposedly once fired 7mm brass.  Turns out I don't think it is true.  But anyway I have had 4 of them do the same thing out of the 100 or so that I have loaded.  Brass is probably just week down around the case head and is doing exactly what Mike is saying.  Mine showed no ejector marks either.  My is a semi auto and on everyone of them I had a malfunction. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/16/2008 at 22:16
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So y'all think (like I do) it was just this case not an overpressure issue?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/17/2008 at 02:50
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If only one shell showed the problem, then it must be the shell. Unless something went wrong on that reload-diff seating depth, primer etc. Could even be that a speck of dirt caused it to bind onto the chamber wall.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/17/2008 at 06:15
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did you full length resize these before you loaded them?

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/17/2008 at 17:55
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No just neck sized.
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